I have the live CD Ubuntu 7.10. When I tried to boot it, it stopped and said that my screen and graphics card were not detected( The Ubuntu is running in low graphics mode). I had no problem with Feisty in my experience.
So , I tried to upgrade and it succeed. But, I cannot enable desktop effect.
The warning sign was like this:
So, I think Ubuntu 7.04 is more robust and stable than Gutsy. I faced two problems at first to experience Gutsy. I will always wait for another version Ubuntu.Could not launch menu item
Failed to execute child process "desktop-effects" (No such file or directory)